Solar PV Analysis of Sligo, Ireland
The location at Sligo, Connacht, Ireland is moderately suitable for generating energy via solar PV throughout the year. However, it's important to note that the effectiveness varies significantly depending on the season.
During summer and spring, you can expect a relatively high amount of electricity production from your solar panels. Specifically, they would generate around 4.61 kilowatt-hours (kWh) per day in summer and 4.41 kWh/day in spring for each kilowatt (kW) of installed solar power.
However, during autumn and winter months, this output drops considerably due to shorter days and less sunlight. In autumn you'd get about 1.72 kWh/day per kW of installed solar power while in winter this reduces further to just 0.87 kWh/day per kW.
To maximise total year-round production from your solar PV system at this location, it's best to tilt your panels at an angle of 46 degrees facing South.
As far as environmental or weather factors go that could impede solar production at this location - Ireland has a temperate maritime climate characterized by mild winters and cool summers which means there are fewer hours of strong sunlight than more tropical climates even during summer months; cloud cover can also be quite high which might reduce sunlight reaching the panels.
In terms of preventative measures against these issues: You could consider using dual-axis tracking systems that adjust both tilt and orientation throughout the day following the sun’s path across the sky – maximizing exposure to direct sunlight despite changing weather conditions or seasons; however these are more expensive than fixed panel installations so costs need to be weighed up against potential benefits.
Also regular cleaning & maintenance will help ensure maximum efficiency by preventing dirt or debris build-up on panels blocking light absorption; snow accumulation during colder months should also be removed promptly where possible for same reason.
Finally ensuring clear unobstructed access to sunlight without shadows being cast over panels from nearby buildings/trees etc. is crucial so careful consideration should be given to installation location within the property.
Note: The Northern Temperate Zone extends from 35° latitude North up to 66.5° latitude.
So far, we have conducted calculations to evaluate the solar photovoltaic (PV) potential in 104 locations across Ireland. This analysis provides insights into each city/location's potential for harnessing solar energy through PV installations.
Link: Solar PV potential in Ireland by location
Solar output per kW of installed solar PV by season in Sligo
Seasonal solar PV output for Latitude: 54.2775, Longitude: -8.4795 (Sligo, Ireland), based on our analysis of 8760 hourly intervals of solar and meteorological data (one whole year) retrieved for that set of coordinates/location from NASA POWER (The Prediction of Worldwide Energy Resources) API:
Ideally tilt fixed solar panels 46° South in Sligo, Ireland
To maximize your solar PV system's energy output in Sligo, Ireland (Lat/Long 54.2775, -8.4795) throughout the year, you should tilt your panels at an angle of 46° South for fixed panel installations.
As the Earth revolves around the Sun each year, the maximum angle of elevation of the Sun varies by +/- 23.45 degrees from its equinox elevation angle for a particular latitude. Finding the exact optimal angle to maximise solar PV production throughout the year can be challenging, but with careful consideration of historical solar energy and meteorological data for a certain location, it can be done precisely.
We use our own calculation, which incorporates NASA solar and meteorological data for the exact Lat/Long coordinates, to determine the ideal tilt angle of a solar panel that will yield maximum annual solar output. We calculate the optimal angle for each day of the year, taking into account its contribution to the yearly total PV potential at that specific location.
Seasonally adjusted solar panel tilt angles for Sligo, Ireland
If you can adjust the tilt angle of your solar PV panels, please refer to the seasonal tilt angles below for optimal solar energy production in Sligo, Ireland. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 46° South tilt angle throughout the year.
| Overall Best Summer Angle | Overall Best Autumn Angle | Overall Best Winter Angle | Overall Best Spring Angle |
|---|---|---|---|
| 38° South in Summer | 57° South in Autumn | 67° South in Winter | 45° South in Spring |
Our recommendations take into account more than just latitude and Earth's position in its elliptical orbit around the Sun. We also incorporate historical solar and meteorological data from NASA's Prediction of Worldwide Energy Resources (POWER) API to assign a weight to each ideal angle for each day based on its historical contribution to overall solar PV potential during a specific season.
This approach allows us to provide much more accurate recommendations than relying solely on latitude, as it considers unique weather conditions in different locations sharing the same latitude worldwide.
Calculate solar panel row spacing in Sligo, Ireland
We've added a feature to calculate minimum solar panel row spacing by location. Enter your panel size and orientation below to get the minimum spacing in Sligo, Ireland.
Our calculation method
- Solar Position:
We determine the Sun's position on the Winter solstice using the location's latitude and solar declination. - Shadow Projection:
We calculate the shadow length cast by panels using trigonometry, considering panel tilt and the Sun's elevation angle. - Minimum Spacing:
We add the shadow length to the horizontal space occupied by tilted panels.
This approach ensures maximum space efficiency while avoiding shading during critical times, as the Winter solstice represents the worst-case scenario for shadow length.
Topography for solar PV around Sligo, Ireland
Sligo, Ireland is predominantly characterized by varied topography including coastal plains, mountain ranges such as the Dartry Mountains and the Ox Mountains, and low-lying areas around Lough Gill. The area is also known for its rolling hills and picturesque landscapes.
In terms of solar PV potential, it's important to note that Ireland in general doesn't have as much sunlight exposure compared to other countries due to its northern latitude and often cloudy weather. However, solar panels can still function under these conditions but their efficiency might be reduced.
For large-scale solar PV installations in Sligo or nearby areas, flat terrains would be most suitable as they provide optimal angles for sun exposure throughout the day. Areas with less shading from mountains or tall structures would also be beneficial.
The coastal plains around Sligo could potentially be good locations for large-scale solar farms due to their relatively flat terrain. Additionally, low-lying areas near Lough Gill may also offer suitable sites given their openness and lower likelihood of shading issues.
However, any potential site would need a detailed assessment considering various factors like land use restrictions (e.g., protected natural areas), proximity to power grids for energy transmission, local climate data (e.g., average sunlight hours), among others.
Lastly, it's worth noting that while large-scale solar farms can contribute significantly towards renewable energy targets; rooftop installations on homes or commercial buildings across broader regions can collectively make substantial contributions too without requiring extensive land resources.
Ireland solar PV Stats as a country
Ireland ranks 83rd in the world for cumulative solar PV capacity, with 136 total MW's of solar PV installed. Each year Ireland is generating 27 Watts from solar PV per capita (Ireland ranks 61st in the world for solar PV Watts generated per capita). [source]
Are there incentives for businesses to install solar in Ireland?
Yes, there are a number of incentives available for businesses wanting to install solar energy in Ireland. The Sustainable Energy Authority of Ireland (SEAI) offers grants and other financial support for businesses that wish to install solar PV systems. Additionally, the government has introduced a Feed-in Tariff scheme which pays businesses for any excess electricity they generate from their solar panels. Finally, businesses may be eligible for tax relief on the cost of installing a solar system through the Accelerated Capital Allowance Scheme.
Do you have more up to date information than this on incentives towards solar PV projects in Ireland? Please reach out to us and help us keep this information current. Thanks!
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Article Details for Citation
Author: Aaron Robinson
Publisher: profileSOLAR.com
First Published: Monday 20th of May 2024
Last Updated: Monday 21st of July 2025
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Compare this location to others worldwide for solar PV potential
The solar PV analyses available on our website, including this one, are offered as a free service to the global community. Our aim is to provide education and aid informed decision-making regarding solar PV installations.
However, please note that these analyses are general guidance and may not meet specific project requirements. For in-depth, tailored forecasts and analysis crucial for feasibility studies or when pursuing maximum ROI from your solar projects, feel free to contact us; we offer comprehensive consulting services expressly for this purpose.
Helping you assess viability of solar PV for your site
Calculate Your Optimal Solar Panel Tilt Angle: A Comprehensive Guide
Enhance your solar panel's performance with our in-depth guide. Determine the best tilt angle using hard data, debunk common misunderstandings, and gain insight into how your specific location affects solar energy production.
